DES MOINES — MidAmerican Energy Co. has agreed to stop burning coal in seven power plant boilers in Iowa and limit emissions from two others as part of a settlement with an environmental group.
The Sierra Club filed a lawsuit last year claiming MidAmerican was violating the Clean Air Act by emitting more pollution than allowed in permits in Sergeant Bluff, Bettendorf, and Council Bluffs.
To settle the case, MidAmerican agrees to stop burning coal in boilers at Council Bluffs and Sergeant Bluffs by April 2016. The company says it also will stop burning coal in Bettendorf but will operate the facility with natural gas.
It says installation of a cleaning system is under way at other boilers in Sergeant Bluffs.
MidAmerican says it settled the case Tuesday to avoid costs to customers.